package com.atguigu.springcloud.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.atguigu.springcloud.entities.CommonResult;
import com.atguigu.springcloud.entities.Payment;
import com.atguigu.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;

/**
 * @Author EiletXie
 * @Since 2020/3/17 22:24
 */
@RestController
@Slf4j
public class CircleBreakerController {

   // public static  final  String SERVICE_URL = "http://nacos-payment-provider";
   @Resource
   private PaymentService paymentService;
//    @Resource
//    private RestTemplate restTemplate;

//    @RequestMapping("/consumer/fallback/{id}")
//    @SentinelResource(value = "fallback")
//    @SentinelResource(value = "fallback",fallback ="handlerFallback")
//    @SentinelResource(value = "fallback",fallback ="handlerFallback",blockHandler = "blockHandler")
//    public CommonResult<Payment> fallback(@PathVariable Long id) {
//        CommonResult<Payment> result = ;
//
//        if(id == 4){
//            throw new IllegalArgumentException("IllegalArgument ,非法参数异常...");
//        }else if(result.getData() == null) {
//            throw new NullPointerException("NullPointerException,该ID没有对应记录，空指针异常");
//        }
//
//        return  result;
//    }
//
//
    public CommonResult handlerFallback(@PathVariable Long id,Throwable e) {
        Payment payment = new Payment(id,"null");
        return new CommonResult(443,"异常handlerFallback，exception内容： " + e.getMessage(), payment);
    }


    public CommonResult blockHandler(@PathVariable Long id,BlockException e) {
        Payment payment = new Payment(id,"null");
        return new CommonResult(444,"blockHandler-sentinel 限流，BlockException： " + e.getMessage(), payment);
    }

    //======= OpenFeign


    @GetMapping(value = "/consumer/paymentSQL/{id}")
    @SentinelResource(value = "fallback",fallback ="handlerFallback",blockHandler = "blockHandler")
    public CommonResult< Payment > paymentSQL(@PathVariable("id") Long id){
        return paymentService.paymentSQL(id);
    }

}
